Holder for test tube



FIG. 1 is a front, top and right side perspective view of a holder for test tube showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a right side elevational view thereof.

The broken lines are included for the purpose of illustrating portions of the holder for test tube that forms no part of the claimed design. 

We claim the ornamental design for a holder for test tube, as shown and described. 